Kirsten Dunst's tipsy premiere

Friends of Kirsten Dunst fear the star may have a drinking problem after she reportedly got "drunk and obnoxious" at the premiere party of new movie 'Elizabethtown'.

The stunning actress is alleged to have arrived on the red-carpet of the New York premiere looking "dishevelled" before drinking herself into an aggressive stupour at the exclusive post screening bash.

According to one fellow reveller, who was quoted by America's New York Post newspaper, Dunst was "drinking a lot and got very loud and obnoxious. She was very pushy."

Dunst's representative, Stephen Huvane, has denied the allegations insisting the claims are "mean-spirited and absolutely false."

Earlier this week, Dunst joked she drinks so much she will end up in rehab.

The 'Spider-Man' star claims she has swapped food in her fridge for cheap alcohol and regularly enjoys a drink at home.

She told American talk show host Jay Leno: "I stock up on Veuve Cliquot champagne.

"I buy it from Costco - cheap there. I have lots of alcohol and no food in my fridge."

When asked by Leno whether she was worried about her drinking habits, the screen beauty added: "Well, maybe in a few months you will see me in a rehab clinic."